I have a 1995 40 Yamaha that will not trim up while the motor is in gear and running over about 1200 rpms. Other than that it works fine. Is there a lockout or a switch somewhere that may be bad.<br />Also, I removed the oil fill for the tilt unit thinking that it might be low on oil and I can't see how to add oil to it. Is there a special fitting that you have to use.<br />Thanks